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20301613437 = 375916385483
BaseRepresentation
bin10010111010000100…
…100000100101111101
31221101212001211002210
4102322010200211331
5313034203112222
613154302011033
71316043603240
oct227204404575
957355054083
1020301613437
118678805726
123b26b76a79
131bb701bc21
14da8399257
157dc497d0c
hex4ba12097d

20301613437 has 16 divisors (see below), whose sum is σ = 31460129280. Its totient is φ = 11404295472.

The previous prime is 20301613417. The next prime is 20301613441. The reversal of 20301613437 is 73431610302.

It is not a de Polignac number, because 20301613437 - 28 = 20301613181 is a prime.

It is a super-3 number, since 3×203016134373 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301613417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8191503 + ... + 8193980.

It is an arithmetic number, because the mean of its divisors is an integer number (1966258080).

Almost surely, 220301613437 is an apocalyptic number.

It is an amenable number.

20301613437 is a deficient number, since it is larger than the sum of its proper divisors (11158515843).

20301613437 is a wasteful number, since it uses less digits than its factorization.

20301613437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16385552.

The product of its (nonzero) digits is 9072, while the sum is 30.

The spelling of 20301613437 in words is "twenty billion, three hundred one million, six hundred thirteen thousand, four hundred thirty-seven".

Divisors: 1 3 7 21 59 177 413 1239 16385483 49156449 114698381 344095143 966743497 2900230491 6767204479 20301613437